diodes on the secondaries

Hi Bob: (and everyone else)
I was reading the M-125 thread and I noticed that you mentioned at one point that one could put diodes on the secondaries of the trannie to prevent reverse current flow if the amp was switched off and on quickly.
Could you put up a little diagram of that for a look at what you mean?

This happens here with a lot of quiick power outages. It might give me a little security.
Thanks
Baddog1946

Hi Baddog,

That modification of putting diodes on the rectifier tube socket is mentioned in this thread here on the Dynaco Tube Audio Forum. There is a diagram on that thread which shows where the diodes go on the tube socket.

Rectifier tube socket mod

Bob

So I'm planning on doing this mod as I've already blown through a GZ34 after a couple months use. I have a question that is probably dumb, but I'm an electronics ignoramus. With diodes installed as discussed aren't they then rectifying the AC signal into DC? Does the GZ34 even do anything with the diodes installed this way?
Any chance of loosing any tube magic imparted by the GZ34 with this diode modification?

I saw a post somewhere that said if diodes are installed this way one could simply jumper out the GZ34. Can't be right, but I'm curious.